78899240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281783}}^1$

素因数の和:281801

約数の個数: 32

約数和(自身を含む): 202884480

約数和(自身を除く): 123985240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281783, 563566, 1127132, 1408915, 1972481, 2254264, 2817830, 3944962, 5635660, 7889924, 9862405, 11271320, 15779848, 19724810, 39449620, 78899240]

約数ペア:

[(1, 78899240), (2, 39449620), (4, 19724810), (5, 15779848), (7, 11271320), (8, 9862405), (10, 7889924), (14, 5635660), (20, 3944962), (28, 2817830), (35, 2254264), (40, 1972481), (56, 1408915), (70, 1127132), (140, 563566), (280, 281783)]